SECTION ______

SM 600 V / LG 600 V / XL 600 V / 2” 450 WSC / 12” 450 SRCRC TRAPEZOIDAL FLUME

PART 1GENERAL

1.01SUMMARY

A.This Section includes all Trapezoidal Flumes required for the complete installation of the work.

1.02REFERENCES

A.Design, fabricate and Trapezoidal Flumes and materials in accordance with manufacturer’s recommended procedures and the following codes and standards:

1. / ASTM A193 / - / Stainless Steel Anchor Bolts
2. / ASTM D256 / - / Izod Impact Strength
3. / ASTM D570 / - / Water Absorption Rate
4. / ASTM D638 / - / Tensile Strength
5. / ASTM D695 / - / Compressive Properties of Rigid Plastic
6. / ASTM D696 / - / Coefficient of Linear Expansion
7. / ASTM D790 / - / Flexural Properties
8. / ASTM D792 / - / Density and Specific Gravity at 230 C
9. / ASTM D1056 / - / Polymer Grade
10. / ASTM D2583 / - / Indentation Hardness
11. / ASTM D2584 / - / Resin, Glass & Filler Content
12. / ISO1438/1-1980 / - / Open Channel Flow Measurement
13. / NSF-61 / - / Potable Water

B. Composition of the Trapezoidal Flume laminate shall be in accordance with the recommendations shown in the Quality Assurance Report for Reinforced Thermoset Plastic (RTP) Corrosion Resistant Equipment prepared under the sponsorship of the Society of the Plastics Industry, Inc. (SPI), and the Material Technology Institute (MTI) of the Chemical Process Industry for “Hand Lay-UP Laminates,” and shall meet the specifications for Type I, Grade 10 laminates shown in Appendix M-1 of said report.

C.Manufacturer shall be experienced in the design and manufacture of specific Trapezoidal Flumes and accessories for a minimum period of 20 years.

D.Manufacturer must provide warranty for 25 years against corrosion.

1.03SUBMITTALS

A.Submit the following for acceptance:

1.Approval Drawings
a.Showing all critical dimensions.
b.Showing principal parts and materials.
2.Spare parts list (when applicable).

1.04DELIVERY, STORAGE AND HANDLING

A.Ship all Trapezoidal Flumes with suitable packaging to protect products from damage.

B.Protect flume flanges, tabs and accessories from damage.

C.The flume shall be stored on a smooth flat surface, free of sharp objects, and if laid horizontally, shall be placed in such a way as to avoid structural damage.

PART 2PRODUCTS

2.01 MATERIALS

A.Flume body shall be:

1.Engineered composite fiberglass reinforced plastic (FRP).
a.Molded in one piece to create a seamless corrosion barrier impervious to moisture.
b.FRP resin shall be polyester / vinyl ester.
2.Flume Hardware (when applicable):Choose a material

2.02 Trapezoidal flumes

A.Acceptable Manufacturers:

1.Plasti-Fab Inc.
a.Shall be Model ______Trapezoidal.
2.The flume fabrication, engineering and customer support shall all be provided by the same company. Outsourcing any of these components is not acceptable.
3.To assure quality control and single source accountability the same manufacturer shall fabricate and fully assemble the flume and all components.
4.Or approved equal. Pre-approved by Engineer at least 10 business days prior to bid date.
a.Manufacturer must have a qualified Engineer on staff with at least 5 years experience with hydraulic measurement flumes.

2.03 DeSIGN CRITERIA

A.Flume shall be dimensioned and shaped according to the U.S. Soil Conservation Service’s design.

B.Composition of the Flume laminate shall be in accordance with the recommendations shown in the Quality Assurance Report for Reinforced Thermostat Plastic (RTP) Corrosion Resistant Equipment prepared under the sponsorship the Society of the Plastics Industry, Inc. (SPI) and the Material Technology Institute of the Chemical Process Industries, Inc. (MTI) for “Hand Lay-up Laminates” and shall meet the specifications for Type 1, Grade 10 laminates shown in Appendix M-1 of said report.

1.Visual inspection for defects shall be made without the aid of magnification and defects shall be classified as to type and level as shown in Table 1 of ANSI/ASTM D2563-0, approved 1977, (or any subsequent revision). Allowable surface tolerances are as follows:

DEFECTS

/

ALLOWABLE TOLERANCE

Cracks
Crazing
Blisters
Chips
Pits
Dry Spots
Fish Eyes
Burned Areas
Entrapped Air /

None

Wrinkles and solid blisters, not to exceed 1/8”

/

Maximum Deviation: 10% of thickness

Surface porosity (pinholes or pores in the laminate surface)

/

None

Exposed Glass
Exposure of cut edges /

None

Scratches

/

None more than .002” deep(.05mm)

Foreign Matter

/

None

C.Maximum Fiber Stress

1.Ultimate or yield, whichever applies, does not exceed 2.5 times the working stress.

2.04 construction

A.Flume

1.Flume model shall be ______.
2.Trapezoidal Flumebody shall be totally manufactured of fiberglass reinforced polyester.
3.Each Flume shall be molded individually to the exact dimensions specified.
4.The thickness of the walls and floor of the flume shall be not less than ¼" (6mm) thick.
5.Flumes shall be manufactured of reinforced thermoset plastic.

6.Flume shall have UV Stabilizing pigment in the Resin to provide long-term protection from UV.

7.Flume inside surface shall be smooth, isophthalic gelcoat of 10 - 20 mil (0.25 - 0.51mm) thickness.

8.The surface shall be free of exposed reinforcing fibers.

9.The minimum glass content shall be 30% exclusive of gelcoat surfaces.

10.Flume shall be structurally designed to maintain dimensional integrity with a full head of water while being free standing.

11.Flume shall have a molded-in head gage with dual graduation in inches / feet and GPM / MGD / CFS.

B.Accessories (add new, and/or delete unwanted items)

1.T-304 adjustable stainless steel ultrasonic mounting bracket.

2.Pressure probe cavity with lift out bracket.

3.Inlet and / or outlet adapter with ____” OD pipe stub.

4.Neoprene boots with stainless steel bands for connection to ____” OD pipe.

5.Stilling well 12” (305mm) diameter.

6.Stainless steel sample pipe 3/8” (9.5mm)OD with molded side cavity.

7.Stainless steel bubbler pipe 1/4”(6mm) OD with molded side cavity.

8.Temperature probe bracket.

9.pH probe cavity with stainless steel lift out bracket.

2.05 physical properties

A.Structural characteristics for a 1/8”(3mm) glass mat laminate shall meet the following minimum physical properties:

Tensile strength

/

15,000 psi (1034 ksc)

Flexural Modulus

/

1,000,000 psi (70307 ksc)

Flexural Strength

/

20,000 psi (1406 ksc)

Compressive Strength

/

22,000 psi (1547 ksc)

Impact Strength

/

9.0 ft-lbs/in.(1.24 kgf.m/25mm)

Water absorption

/

0.13% (in 24 hours)

2.06 dimensions

A. The flume shall conform to the physical dimensions listed in Figure 19 of the U.S. Department of Interior, Water Measurement Manual, latest edition. Dimensional tolerances for large flumes shall be plus or minus 1/8" (3mm) maximum in the throat, and plus or minus 1/4" (6mm) maximum elsewhere

PART 3EXECUTION

3.01 INSTALLATION

A.Verify that dimensions are correct and project conditions are suitable for installation. Do not proceed with installation until unsatisfactory conditions have been corrected.

B.Thoroughly clean and remove all shipping materials prior to setting.

C.Install products in accordance with plans, general comments below and the Manufacturer’s recommendations.

D.Care shall be taken in the handling, storage and placement of the flume in preparation for installation. The top spreaders shall be left on the flume until after installation is complete. They may be removed after the grout has cured if desired.

E.The flume shall be installed level end-to-end and side-to-side, and must remain level throughout installation. Flume assembly should be set into a pre-poured block-out / channel.

F.The contractor shall provide sufficient shoring and bracing of the floor and sidewalls to prevent lifting, floating, buckling or bulging of the sides and bottom during installation. The side locking clips are not intended to be used as anchorage points. Their function is to key the flume into the grout or concrete.

G.Concrete shall be poured in successive lifts of not more than 6" - 8"(152-203mm) per lift. Extra care shall be exercised during the first pour to insure that grout flows smoothly under the floor, and an even fill is achieved. The first lift shall be allowed to set so that excessive hydraulic forces are not transferred to the bottom of the flume by later lifts.

3.02 adjustment and start up

A.Check flume for being level both directons, meeting dimensional requirements andcleaned per manufacture’s instructions.

B.Start up / calibration of meter per section ______(when applicable).

C.Site to be left clean and free of any debris.

D.Representative shall complete a Certification of Proper Installation and provide copies to the Owner, Engineer, Contractor and Manufacturing Facility. (When applicable)

3.03 FIELD TESTING (OPTIONAL)

A.Qualified Factory representative shall provide (8) hours of training for facility employees. (Optional)

B.Representative shall complete a Certification of Proper Installation and provide copies to the Owner, Engineer, Contractor and Manufacturing Facility. (When applicable)

END OF SECTION

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ADDRESS - P.O. Box 100 9665 SW Tualatin-Sherwood Rd. Tualatin, Oregon